Thursday, April 27, 2017

Bell OH-58A, Puerto Rico Police Department, N161PD: Accident occurred October 25, 2016 in Ponce, Puerto Rico

Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

NTSB Identification: ERA17CA056
14 CFR Part 91: General Aviation
Accident occurred Tuesday, October 25, 2016 in Ponce, PR
Probable Cause Approval Date: 09/07/2017
Aircraft: BELL OH 58A, registration: N161PD
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

During an instructional flight, the helicopter was about 40 to 50 ft above ground level and at 60 knots when the flight instructor intended to demonstrate a simulated engine failure and run-on landing. Although the flight instructor had intended to recover from the maneuver before an actual run-on landing, he noticed that he did not have enough rotor rpm to recover and chose to continue with the run-on landing. The helicopter then landed hard on a taxiway and slid about 300 ft before coming to rest upright. The flight instructor added that there were no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation. Examination of the helicopter by a Federal Aviation Administration inspector revealed damage to the aft engine bulkhead and wrinkles in the helicopter panels near the tailboom and rotor gear box.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The helicopter flight instructor's inadequate demonstration of a simulated engine failure, which resulted in a hard landing.

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Ponce, Puerto Rico

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Puerto Rico Police Department: http://registry.faa.gov/N161PD

NTSB Identification: ERA17CA056
14 CFR Part 91: General Aviation
Accident occurred Tuesday, October 25, 2016 in Ponce, PR
Aircraft: BELL OH 58A, registration: N161PD
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.


During an instructional flight, the helicopter was at an altitude of 40 to 50 ft above ground level, at 60 knots, when the flight instructor intended to demonstrate a simulated engine failure and run-on landing. Although the flight instructor had intended to recover from the maneuver prior to an actual run-on landing, he noticed that he did not have enough rotor rpm to recover and elected to continue with the run-on landing. The helicopter then landed hard on a taxiway and slid about 300 ft before coming to rest upright. The flight instructor added that there were no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation. Examination of the helicopter by a Federal Aviation Administration inspector revealed damage to the aft engine bulkhead and wrinkles in the helicopter panels near the tail boom and rotor gear box.

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